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  • Copper disc design for high heat dissipation
  • Accurate control
The Wichita Kopper Kool airtube disc Clutches and Brakes are liquid cooled and consist of a series of alternating discs connecting an inner drive member to an outer drive member.

Engagement is achieved by pneumatic expansion of the airtube. This air-operated clutch contains copper discs for excellent heat dissipation and provides an accurately controlled continuous slip action for constant web tensioning. Tension levels are in direct proportion to air pressure applied.
Unit of Measure

Design Features

N/A

  • New friction material lasts longer with less wear on mating copper.
  • Copper alloy wear plates increase heat transfer.
  • Hub spline provides perfect alignment of rotating discs.
  • External air & water connections.
  • Release springs ensure complete disengagement.
  • High strength reinforced neoprene air-tube offers long service life.
  • Optional long stroke air tube available on 18" or 24" size units to increase life and standard maintenance intervals.
  • High thermal capacity.

Specifications

Assembly Number

 N/A 7-326-200-100-0
Dynamic Torque Rating (80 psi/5.5 bar)1 N/A 245840 lb.in 27760 Nm
Dynamic Torque Rating (100 psi/7 bar)2 N/A 307300 lb.in 34719 Nm

Heat Capacity for Parallel Water Hosing

 N/A 700 hp522 kW

Maximum Bore Size

 N/A 8.13 in207 mm

Parallel Water Flow 0 % Ethylene Glycol

 N/A 70 gpm264 lpm

Parallel Water Flow 30 % Ethylene Glycol

 N/A 90 gpm340 lpm

Parallel Water Flow 50 % Ethylene Glycol

 N/A 108 gpm408 lpm

Total Brake (Weight)

 N/A 1421 lb645 kg

Pilot Diameter A

 N/A 32.75 in831.9 mm

Bolt Hole Circle Diameter B

 N/A 28.750 in730.25 mm

Pilot Diameter C

 N/A 24.378/24.375 in619.13/619.20 mm

Dimension D

 N/A 32.75 in831.9 mm

Dimension F

 N/A 6.25 in158.8 mm

Dimension G

 N/A 2.36 in59.9 mm

Dimension H

 N/A 15.50 in393.7 mm

Dimension J

 N/A 0.25 in6.4 mm

Number of Bolt Holes

 N/A 12

Bolt Hole Size L

 N/A 21/32 in16.7 mm

Dimension M

 N/A 15.50 in393.7 mm

Dimension N

 N/A 11.67 in296.4 mm

Dimension Q

 N/A 2.00 in50.8 mm

Number of Inlet Ports - Thread Size

 N/A 4- 1/2 NPT

Dimension T

 N/A 12.00 in304.8 mm

Minimum U

 N/A 4.00 in102 mm

Maximum U

 N/A 207 mm
Number of Coolant Inlets - Thread Size3 N/A 4 - 1.25 NPT

Manufacturer

 N/A Wichita Clutch

Actuation

 N/A Air Applied

Note

N/A Maximum water jacket inlet pressure is 60 PSI. Brakes with as great as 50 % higher torque capacity is available upon request.

Current design is with enhanced linings. A unit with regular linings is available upon request.

Not a pilot but a nominal dimension only.
(Consult factory for drawing before final layout.)

Number of inlets and outlets are equivalent.

  • 1 Static torque will vary with temperature. Maximum air pressure is 100 PSI / 7 BAR. Minimum recommended air pressure is 3 PSI.
  • 2 Static torque will vary with temperature. Maximum air pressure is 100 PSI / 7 BAR. Minimum recommended air pressure is 3 PSI.
  • 3 Number of inlets and outlets are equivalent.
    (Consult factory for drawing before final layout.)